tweak topic type badges

src/widgets/contact-list.jsx

@@ -60,6 +60,7 @@ class ContactList extends React.Component {
           }
 
           const isChannel = Tinode.isChannelTopicName(key);
+          const isGroup = !isChannel && Tinode.isGroupTopicName(key);
           const selected = showCheckmark ?
             (this.props.topicSelected.indexOf(key) > -1) :
             (this.props.topicSelected === key);
@@ -112,6 +113,7 @@ class ContactList extends React.Component {
               selected={selected}
               showOnline={this.props.showOnline && !isChannel}
               isChannel={isChannel}
+              isGroup={isGroup}
               showContextMenu={this.props.showContextMenu}
               isVerified={c.trusted && c.trusted.verified}
               isStaff={c.trusted && c.trusted.staff}

src/widgets/contact.jsx

@@ -105,6 +105,7 @@ class Contact extends React.Component {
         </div>
         <div className="text-box">
           <div><span className={titleClass}>{title}</span>
+            {this.props.isGroup ? <i className="material-icons as-badge">group</i> : null}
             {this.props.isChannel ? <img src="/img/channel.png" className="channel" alt="channel" /> : null}
             <ContactBadges badges={icon_badges} />
             {!this.props.deleted ? <UnreadBadge count={this.props.unread} /> : null}